Find a formula for the nth term of the arithmetic sequence whose first term a and common difference d are given.a = 2, d = 4
A. an = 4n + 2
B. an = 4n - 2
C. an = n + 4
D. an = 2n - 4
Answer: B
Mathematics
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Solve.Avegail needs to determine the distance at certain points across a lake. Her crew and she are able to measure the distances shown on the diagram below. Find how wide the lake is to the nearest tenth of a meter.
A. 150 m B. 9.5 m C. 90 m D. 187.9 m
Mathematics
Solve the inequality by the test-point method. Write the solution in interval notation.x2 + 9 < 3x
A. (-?, -3) B. {3} C. (3, ?) D. ?
Mathematics
Write the phrase as a variable expression. Use x to represent "a number."The quotient of 59 and the product of a number and -8
A. 
- 8
B. -472x
C. 
D. 
Mathematics
Decide whether the graph represents a function.
A. Function B. Not a function
Mathematics